EP 1985353 A1 20081029 - Exhaust gas purification catalyst for automobile, exhaust gas purification catalyst system and purifying process of exhaust gas
Title (en)
Exhaust gas purification catalyst for automobile, exhaust gas purification catalyst system and purifying process of exhaust gas
Title (de)
Abgasreinigungskatalysator für Automobile, Abgasreinigungskatalysatorsystem und Abgasreinigungsvorgang
Title (fr)
Catalyseur de purification de gaz d'échappement pour automobile, système catalytique pour la purification de gaz d'échappement et processus de purification de gaz d'échappement
Publication
Application
Priority
JP 2007119025 A 20070427
Abstract (en)
The present invention provides an exhaust gas purification catalyst for automobile which is capable of raising temperature of exhaust gas exhausted from combustion engines such as diesel engine cars and converting NO in the exhaust gas to NO 2 , in addition, an exhaust gas purification catalyst system to purify soot, soluble organic component and NOx component exhausted from diesel engines, and a purifying process of exhaust gas. The present invention is an exhaust gas purification catalyst composition to oxidize NO in automobile exhaust gas comprising a catalyst composition in which a noble metal catalyst component (A) is supported on a heat-resistant inorganic oxide (B), and an exhaust gas purification catalyst composition etc. for automobile characterized in that the noble metal catalyst component (A) comprises platinum (Pt) existing in a state of elemental substance in the catalyst composition and platinum - palladium (Pt-Pd) existing in a state of alloy in the catalyst composition are provided.
IPC 8 full level
B01D 53/56 (2006.01); B01D 53/92 (2006.01); B01D 53/94 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); F01N 3/28 (2006.01)
CPC (source: EP US)
B01D 53/9418 (2013.01 - EP US); B01D 53/944 (2013.01 - EP US); B01J 23/42 (2013.01 - EP US); B01J 23/44 (2013.01 - EP US); B01J 23/63 (2013.01 - EP US); B01J 35/19 (2024.01 - EP US); B01J 37/0248 (2013.01 - EP US); B01D 2255/1021 (2013.01 - EP US); B01D 2255/1023 (2013.01 - EP US); B01D 2255/9202 (2013.01 - EP US); B01D 2258/012 (2013.01 - EP US); B01J 35/30 (2024.01 - EP US); B01J 35/393 (2024.01 - EP US); B01J 35/56 (2024.01 - EP US); Y02A 50/20 (2018.01 - EP US); Y02T 10/12 (2013.01 - EP US)
Citation (search report)
- [PX] EP 1864713 A1 20071212 - N E CHEMCAT CORP [JP] & WO 2006109417 A1 20061019 - N E CHEMCAT CORP [JP], et al
- [X] WO 2006056811 A1 20060601 - JOHNSON MATTHEY PLC [GB], et al
- [X] WO 9532790 A1 19951207 - ALLIEDSIGNAL ENVIRONMENTAL CAT [US]
- [A] MORLANG ET AL: "Bimetallic Pt/Pd diesel oxidation catalysts", APPLIED CATALYSIS B: ENVIRONMENTAL, ELSEVIER, vol. 60, no. 3-4, 3 October 2005 (2005-10-03), pages 191 - 199, XP005095694, ISSN: 0926-3373
- [PX] GRAHAM G W ET AL: "Effect of alloy composition on dispersion stability and catalytic activity for NO oxidation over alumina-supported Pt-Pd catalysts", CATALYSIS LETTERS, KLUWER ACADEMIC PUBLISHERS-PLENUM PUBLISHERS, NE, vol. 116, no. 1-2, 27 April 2007 (2007-04-27), pages 1 - 8, XP019498947, ISSN: 1572-879X
Designated contracting state (EPC)
DE FR GB IT
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 1985353 A1 20081029; EP 1985353 B1 20121114; JP 2008272659 A 20081113; JP 4982241 B2 20120725; US 2008271441 A1 20081106
DOCDB simple family (application)
EP 08007397 A 20080415; JP 2007119025 A 20070427; US 14907108 A 20080425